EmberJS-获取在{{render}}助手中创建的控制器

Question

I have a {{render 'B' model}} helper in template A, so B/BView/BController are essentially children of A/AView/AController. BController even has AController as its parentController.

Is there a way to (easily) reference BController from AController? I'd prefer not to set something to B's parentController because it's not always A.

Answer 1

Ember lets you use a needs property for this purpose: http://emberjs.com/guides/controllers/dependencies-between-controllers/

App.AController = Ember.ObjectController.extend({
    needs: ['b']
    actions: {
        somethingWithA: function() {
            var bController= this.get('controllers.b');
            // ...
        }
    }
});